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Since 2007 ... We stand behind our Non-OEM products, manufactured under ISO 9001 certifications. 100% satisfaction or you may return your purchase to us within 6 months of purchase for a replacement or exchange, free of charge. OEM Products come with a manufacturer warranty only.

This high yield toner cartridge prints 6000 pages with an average of 5% coverage. Page Yield is based on Brothers manufacturer specifications. The actual yield can vary depending on factors including: the size paper you are using, your printers settings, & how much content is printed onto each page.

What is a High Yield Toner Cartridge? Printer manufacturers offer High Yield Toner Cartridges as an upgrade over standard cartridges. High Yield cartridges contain more ink/toner than regular cartridges.

This product comes with a 6 month Warranty against any defects (including free replacement). We stand behind our products 100%, as these are not manufactured by Brother.

Product Manuals

When do I Replace a Toner Cartridge in the Brother HL-1240 Laser Printer?

The standard toner cartridge installed in your Brother HL-1240 Laser Printer has a printing resource for a maximum of 3000 new prints. Once this printing resource is close to exhaustion, the built-in toner monitoring system will turn ON both [Alarm] and [Data/Toner] indicators, which are located in the control panel of your HL-1240. These indicators will be blinking once every 5 seconds, indicating the need for a toner cartridge replacement. If you continue using the printer without replacing the toner cartridge, once the above situation occurs, the remaining toner will be completely consumed very soon, which will lead to the disabling of all printing operations. Please note, when the printer switches to the above non-operational mode, both [Alarm] and [Data/Toner] indicators will be steadily lit. In order to maintain a good printing quality and to keep your printer from switching to non-operational mode, you should always keep a new toner cartridge in stock.

How to Install a Toner Cartridge in the Brother HL-1240 Laser Printer

Initially, you must open the front cover of your Brother HL-1240 Laser Printer and uninstall the drum unit by pulling it straight towards you. After that, you must place the uninstalled drum unit on a flat surface, and take the toner cartridge out of the drum unit by pulling it towards you while pushing down its colored lever. Now, you must prepare the new toner cartridge by unpacking it, and then shaking it at least seven times horizontally. In the next step of the replacement procedure, you must remove the protective plastic cover from the new toner cartridge by detaching its left side first. Then, you must insert the new toner cartridge into the drum unit, but make sure that the cartridge clicks into place, and check if its colored lock lever has been automatically lifted. Once the new toner cartridge is securely attached, you must clean the primary corona wire of the drum unit by holding the colored cleaning tab, which is located on the top left side of the drum unit, and slide it back and forward along the drum unit at least 5 times. Now, you must insert the drum unit into the printer, but before that make sure the corona wire cleaning tab is back to its original position (there is a mark on the drum unit). Finally, you can close the front cover of your Brother HL-1240 Laser Printer and continue with your printing projects.